Fire-extinguisher.



` A. L'. HANSEN.

FIRE EXTINGUISHER. APPLICATION FILED MAR. 20, 1916.

A. L. HANSEN.

FIRE EXTINGUISHER.

APPLICAUON FILED MAR. 20, 1916.

Patented Aug. 20, 1918.

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it known that l, einen@ L. Hansen, a cil-igen el 'the United States, and a resident of Evanston, in the county of Cook and Stale oit illinois, have invented certain new end useful lnipiovenients in liireEXtinguishers, of which the following is a specification.

l invention relates to portable lire ei:- inguishers and its general object-is to peovide construction and arrangement which is more simple and less expensive and which gives greater eliiciengy Fire extinguishers/of this class, which are used to considerable extent in buildings and on if'ehicles, rnus'l;I bqble of operation to ejeci. liquid irrespective of lhe position' in which the extinguisher is held. Furthermore, tie. capacity of such extinguishersis quite limited', usually to one quat, and pro! vision innst theiefore be inade -to enable practically all of ine contents to be ejected. n prior extinguishers of this class e iounil-about 'dischaige passageway is pro?4 vided to which separate liquid inletslead iii-oni the respective ends of the liquid con- 'temer mechanisms are provided ior control ling Athe inlets and to prevent entrance rof aie. nto tnai. inlet which is not immersed in the liquid. The construction and arrangement in suoli prior extinguishers is therefore complicited and expensive to manufacinre and they can readily lnet outv of order.

@ne of the importent objects of my invenrion is to provide more direct communi cation bet-.veen the liquid and the ejectionA veu.

the mntainer as the container is tilted orl rotated during use, the conductor being alvnys open to the liquid, there being no xalves' except a nozzle valve which controls the ejection. .lnolher object of the invern, tion is in piovide supporting structure for the flexible conductor which will prevent angl .i5- thereoj and which will guide its and complicated valve structures into the fpiston rod and pump barrel.

'fitting 14. forced inwardly the 'nell valvey 24 seats and inlet end to enable it to more readilyy follow the liquid. v

Other features of the invention. residei in 'simplified 'construction and erringeinent f which reduce the number of parts to arnininenni and which reduce the cost of constnucf tion and assembly, no delicate adjustments being necessary.

An extinguisher embodying the 'variousy Fig.' Fris -asectional View Aon plane 5-5, Figlf f v Vlhe liquid container for the extingnisle" comprises .fitubular body7 l0 andtheend @alps ll and l2. vThe cap 12 supports the pump barrel 18 which extendsaxially through the container body l() and Whose outer end oai.- ries the bearingl fitting le for the hollow piston rod l5 Iand has secured `to its outer .end the elliptical grip'or handle-16; rlhe'inner end of the pismn rod ear-riesthe piston head 17 having-the annular groove lBin which-is seated a circular spiral spring washer '19 which bears outwardly against the leather washer 20 surrounding the piston headv and :clamped against the rear face thereof by a washer 2l and nut 22. lin the piston' rod` end is formed the seat 23 for 'theliall valve 24 "which'is held against the seat by a spring 25 'held 1n place by a plug 26 inserted 1n thel piston hea l. The opening'QY in the plug with the pumpmbarrel 13 and the opening '2li connects the interior of the piston' rod 27 at the other end of. the piston rod connects the interior of the rod with the atmosphere. W hen the lpiston ystructure is pulled outthe ball valve moves away from its seat and air entersthrough opening 28 inback of the piston head is forced from the pump barrel thigough the outlet ,29 in the When the piston structure is the air in aclvance of the oston head is com,-

Air

feet ejecting pressure against the liquid con- 'l ejected. The plug 42 is threaded intc the.

' pipe 46 and the 'nzzie head 47. Provision' als lpressed.. A ball-check valve- 3G is seated in the pocket 31 at Jthe inner end of the4 bar-- air, and this compressed air eventuallfy reaches the interior of the container to tents. in order vto store the 'air and toretain it iroln acting on the liquid' until, it

reaches a certain pressure, storage space is provided for the air. As shown, a part1` tin 35 is 'itted into the end of the' body l() adjacent thel convex end cap 12 and -extending from this partition and concentrically surrounding the pump barrel is the tube 36, the interior of this tube together with the chamber-S between 4the partition 35 and the end cap. 12providin the Storage space for the compressedair eaving the pump barrel when the piston is forced inwardly. vA tubular projection 37 from the partition 35 into chamber S provides a seat "38 around the inlet openingv3|9 to the projection, va ball check valve .40 being normally held against-the seat bya spring 41 held in the. plug 42, this plug having the outlet opening 43 into the body l0 of' the container which holds the liquid to betube 41 in'order that l`the pressure of the spring 41 against'the vball valve 40 may be' adjusted. With this arrangement the ball valve will not open v-until the pressure 'rpaches a predetermined value. The body 10 has the fluid charging inlet 44 for whic a removable plug 45 1s provided.

The endcapE 11 supports the nozzle structure' N', this nozzle structure comprising the is 'made Atoy open or. close the passageway through the nozzle structure to the exteriorof container. As shown, ,a valve frame 48 is supported centrally on the end cap 11 and comprisesvthe'tubular sections 49 and 50, the

inner' tubular'section 50 being of less diameter than* the outer section 49 and the inner endof the passageway 51 through the inner tubular section 50 is surrounded by .a bead or ridge 52 vforming avalve seat for the base of thev nozzle member 47 which is contained within the outer tube section 49.

preferably oi ber, is inserted 'in the base oi the nozzie head to engage with the valve bead 52. The nozzle head has thecentral tend the radial 'fing from. he pipe 46 through the passageways-'55 and 54 to the 'exterior when the valve head is away from its seat. To con- ',the hub and a lever 57 which ezt' liquid from thenozzle.

To insure, l tight seating of the nozzle head adisk 53, f

Lamaze 4 trol shifting of the valve head to and in its seat it has threaded engagement 4 outer wall of a hollow plug 56 which into the tubular part 49 oi the :titeL the outer end of 'the nozzle head onal as best `shown in Fig. 3 and ally over the end cap l1. 'When tl` swung the valve head is moved aria vremoved from its valve seat or to be seated thereagainst. To limit the swing oi' the nozzle lever abutinents 58 and 59 are provided on the end cap 11 and these abutments vare preferably Connected by a bridge '60` which overlies Athe end of -the nozzle lever and protects it against bending. in Fig. 3

y the lever is shown against vabutment 58, the

nozzle valve being closed in position of the lever. When the lever.x is swung'into position against abutment ,la valve will be wide open,

d the la ate pos be swung to anyintermedi correspondingly control the out A seal ably ties the lever in its closed po abutment 58 and the lever end being vprovided with openings 62 and 463 respee tively for Kreceiving the seal shown in the forni of a wire. The seal is of material which can easily'be broken when suiiicient pull is e5 exerted 0n the lever, and afterbrealring ot the' seal the lever can be operated as desired to correspondingly control the nozzle valve.

The inner end of the nozzle pipe 46 has 1 the inlet opening 64 from which extends short p iece of metal tubing 65 over whose ,end is slippedone end of a conductor 66,' `this conductor being flexible and oi sufricient length to enable its free end 67 to ich 10W the liquid in the container when a container is tilted or rotated. To er this free end of the'conductor to L readily follow the liquid it is preferably se cured to a weight 68 which has the nipple 69 over which the end 67 may be slipped. and which has the inlet opening 70 cernmunicatingwith the nipple.

As extinguishers of'this class strenudus use during lighting` e a re and lare rotated and rapidly tilted, ne flexible conductor might become tangled up and it is therepre desirable'. to provide guide n put to means forxits free end and for the weight 68. As shown, l have provided a Yframe which comprises the end disks 7l and 72 and the longitudinal-ly extending connectingv bars 73. IThe frame carries also the 'longitudinally extending guide' bars 74 and which are secured to the end disks and between which the weight 68 is mounted to a slide lengthwise of the frame. To reduce the resistance, rollers 7 6 and 77 may be provided for engaging with the bars 74 and 75 respectively. rlhe supporting trarne for the weight 1s also free to rotate' axially. The

all

Y lment for the piston grip or handle structure terasse end disk 72 has' the central opening 73 for receiving the tube 36,' and the nozzle pipe 46 is preferably secured to the end diskl axially thereof and swiveled With reference to the' fitting 48 which contains the nozzle head 47. .As shown, the outer end of the pipe 46 extends into the passageway 5l of the tub part 5U of the fitting 48 and the pipe h. J the collar 79 Which is clamped between the inner end ofthe tube part .50 and the iiange 80 of the cap 81 which screws into the tube part 50, a Washer 82 of suitable maf terial being preferably interposed between lthe collar and the part 50. W ith this arrangement the Weight 7l together with the 'iiexible conductor and the nozzle pipe 46 forms part-of the supporting frame which' is freely 1'otatable axially, and such free axial rotation .of the frame. together with the longitudinall sliding arrangement of th?- wei'ght on the trame enables the Weight' to accurately and quickly follow the liquid so that the liquid inlet is always ini.- inersed in the liquid no matter how the container is tilted or rotated, and during such mo'vement of the Weight the exible conductor 66 moves bodily-with the supporting -frame and cannot become kinked 0r tangled, the conductor being helical and expanding and contracting as Athe Weight shifts along the frame. The conductor may be further held' and supported by passing between the guide bars 74 and 75.

The end cap 1l which supports the noz* i zie has preferably detachable threaded engagement with the end of the container body l0 and therefore When this cap is un- -screwedvfrom the container body, it to-l gether with the nozzle structure and the. intake conductor supporting frame F canv be Withdrawn from the container body. lnspection and repairs can therefore be very readily and quickly made. There being no valves of any kind associated with the discharge conductor, the arrangement is extremely simple yet most eflicient. It de# mounting the inner end of the pipe 46 extended into the socket' at the' inner end of 'the tube 36, this bearing engagement together' withthe engagement of the frame end disk 72 With the tube causing the frame to be practically pivoted and supported on'the tube 36 so that its lWeight.'Will be removed from the nozzle structure." i

,- lpreferably providejnterlocking engage- 16 with the container. As shown, the han-1 dle or .grip 16 has hooks 84Y and 85 extending from its basel and into theperipheral groove 86 formed in the bearingfitting V14 for the piston rod, the hooksengaging with the outer flange 87 on the tilting; The opv posits sides of this ange aren'tched for cutaway .as-indicated at A88 and 89 ,inv order lock thehandle to the container it is rotated to` bring the tongues opposite the notches whereupon. the tongues can be Ashifted inwardly and then rotated. to be in interlocking position behind the flange 87.

When vit is desired to operate the extinguisher pull is exerted on the'nozzle lever @7 sufficiently to break the seal 61 and the -nozzle is opened. Then, after the handle 16 is unlocked the pump mechanism is operated to compress air into the storage space between the tube. 36 and chamber Syand when the vair is sutliciently compressed to open the valve 40, it enters the body o `the container' and exerts its pressure against the liquid to force the liquid into and through theilexiblc discharge conductor and through the pipe 46 and nozzle head7 the flexible con-v ductor inlet end being carried by the eight andvits supporting `traine F to follow lthe liquid and to bc always immersed thcl'cin. lt is obvious that the pump can be operated before the nozzle is open in order to coni'- press a supply of air in the container for acting on the liquid to effect rapid ejection thereof as soon as thefnozzleis opened.y 1

The extinguisher of my invention has very few parts and such parts are osimple and inexpensive construction.4 'lhe arrangeor paration thereof can be readily ac-l complished. The discharge conductor being one, end ofthe container and communicating withl the exterior, said pipo being rotatable axially; a discharge conductor connected atr one end With'said pipe, the other ond of said conductor being always opcir to the' liquid and 'free to 'follow the liquidato any part ot the container asthecon-taincr is tilted-` or rotated9 and pressure producing means With-i inthe container for forcing the liquid into: the discharge conductorqand througln nozzle'pipe.

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2. In a hre;extinguislicr,gthe combination f of.aficntainerior liquid?" a discharge nozzle i leo.

structureat one end of the container, a discharge conductor connected at one end with said nozzle structure with its other end open to thel liquid, said. conductor beinglexiblev and being helically arranged whereby its inlet end may follow the liquid to any part of the container as the container is tilted or rotated, and pressure producing means within the container for forcing the liquid into and throughv said discharge conductor and through the nozzle 'ic-ture.

3, In a lire extinguisher, the combination of a container for liquid, a discharge nozzle, a .flexible discharge conductor within the container connected at, one end with said nozzle,a weight to which the inlet end of said conductor is'secui'ed, a shiftable frame for said weight, said weight being shiftable on and with said frame to carry the inlet end of said conductor to follow the liquid to any 'part of the container as-the container is tilted or rotated, and pressure producing means within the container for forcing the liquid through said conductor and nozzle.

l 4. In afffire extinguisher, the combination of a container for liquid, a nozzle at one end of the container, a supporting frame rotatable axially within said container, a weight .sliiftable longitudinally on said frame, a flexible vdischarge conductor supported on said frame, coupling mechanism connecting the outlet end of said conductor withsaid nozzle,qtheinlet end of said conductor being secured to said weight, said weight beingshiftable on andwitli said frame to 'more said conductor inlet end to follow the liquid to any part of theV container as the container is tilted and rotated, and pressure producing means within the container for forcing the liquid through said conductor and nozzle. l 5. In a fire extinguisher, the-combination i of a cylindrical container for liquid, a discharge nozzle at one end of said container,

a frame Within the container, a weight shiftto be carried bythe weightto follon7 the l of acylindrical container for liquid, a dis, lcharge nozzle axially arranged at one end liquid in the container, and pressure producing means within the container for forcing the liquid -through' said conductor and nozzle.'

6. In a fire extinguisher, the combination of the container, a frame rotatable axially in said container, a flexible discharge con; ductoi' supported on said frame',fcoiipliiig mechanism connecting the outletend of said conductor with the nozzle, a weight to which the inletend of said conductor issecured, said weight being rotatable with and shiftable on said frame to carry the inlet end of the conductor-to follow the liquid to any part of the container as the container -is tilted and rotated, and pressure producing means within the container for forcing the liquid through said discharge conductor I and nozzle. .7. In afre extinguisher, the combination of a .cylindrical container for liquid, a discharge nozzle structurer, arranged axially at one e'nd ofthe container, said structure com prising a head open tothe exterior, and a pipe extending into the container, a valve between said lhead and pipe operable from the exterior of the container to control the flow ofliquid .through the nozzle structure, s'aid pipe be` ing axially rotatable, ahfraine vwithin the container secured at one eird to said pipeand axially pivoted at its other end whereby 'said frame inay axially rotate, a weight sliiftable longitudinally on said frame, said' frame by being rotatable permitting said' weight 'to remain below the axis of the container,- a flexiblev conductor supported on said frame, the outlet end of said conductor being connected to communicate with said nozzlev structure4 pipe and its inlet end being connected with the Weight, said yweight by rotating with said frame and shifting thereonv causing said inlet end to follow `the liquid to any part of the container as the container is tilted or rotated, and pressure producing means within the container for forcing the "liquid through said discharge conductor and nozzle strucq ture. 8. In a lire extinguisher, the combination ofa cylindrical container, a nozzle at one end' of said container, walls forming a chamber at the other end of said containeri a -tube extending axially tliroughthe container and communicating with said cliainber to form a Continuation thereof, an air pump located within said tube and operable from the exterior of the container, the air compressed by said pump being stored in said chamber and tube, a check valve for controlling the flow of air from said clianiber into-the container, anda discharge conductor communicating at one end with the nozzle and free at its inlet. to follow the liquid.

9. In a fire extinguisher, the combination of acylindrical container for fluid, a discharge nozzle at. one end of the container comprising an `outer section and,.en inner section extending axially of thet container, said inner nozzle section being axially rotatable, a frame extending longitudinally within the container, one end of said frame being suspended from said inner section of the nozzle and there being means at the other end of the container for suspending the corresponding end of the frame for axial rotation, a slider longitudinally shiftable on said frame, the weight of said slider causing said frame always to hang when the container is rotated, a discharge conductor having its intake end secured to said Slider and its outlet end connected with said inner section of the nozzle, and means for producing pressure against the liquid in said container.

10. In a lire extinguisher, the eombination of a cylindrical Huid container, an axially extending nozzle at one end thereof,

an axial support at the other end of said container, a frame suspended from the inner end of said nozzle and said support and extending longitudinally of the container adjacent the cylindrical wall thereof, said frame being Weighted whereby it will always hang Vertical as the container is axially r0- AUGIE L. HANSEN. 

